An issue was discovered in Joomla! before 3.9.5. The "refresh list of helpsites" endpoint of com_users lacks access checks, allowing calls from unauthenticated users.
https://developer.joomla.org/security-centre/778-20190402-core-helpsites-refresh-endpoint-callable-for-unauthenticated-users
Source: Mitre, NVD
Published: 2019-04-10
Updated: 2020-08-24
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Severity: High